El articulo forma parte de una seccion de la revista dedicada a propuestas didacticas.- Forma par... more El articulo forma parte de una seccion de la revista dedicada a propuestas didacticas.- Forma parte de una serie coleccionable (material fotocopiable)
Most biogeographers considered the Maghreb to be part of the Palearctic biogeographic region, tho... more Most biogeographers considered the Maghreb to be part of the Palearctic biogeographic region, though it is relatively recently that the proportion of Palearctic species increased there. How and when exactly these biogeographic changes occurred is not well understood, but they are probably the result of the increasing aridification of the Sahara and decreasing global temperatures. Fossils of Bos primigenius and Ceratotherium simum from a new fossil locality in a terrace of the Oued el Haï (NE Morocco) contribute to our understanding of some of these biogeographic processes and their timing. They also suggest an age between ~57 and ~100 ka for the terrace. The same evolutionary change in Bos in Europe and the Maghreb suggests geneflow as the most parsimonious explanation, though parallel evolution is an alternative possibility. Oued el Haï has the oldest well-documented record of C. simum in the Maghreb. The dispersal of this species to North Africa, where it replaced C. mauritanicum, may have occurred during a ‘Green Sahara Period’ between 80–85 or 100–105 ka, when the Maghreb had acquired already a Palearctic character. The study of the biogeography and requirements of the large mammals of the Maghreb may provide information to calibrate the region’s climate modelling. Link: https://www.tandfonline.com/doi/abs/10.1080/08912963.2021.1995381?journalCode=ghbi20
Información del artículo Transformación de la humanidad: ¿cómo se produjo el primer salto hacia l... more Información del artículo Transformación de la humanidad: ¿cómo se produjo el primer salto hacia la humanización?
Información del artículo El sistema lógico analítico: una herramienta para el estudio de la tecno... more Información del artículo El sistema lógico analítico: una herramienta para el estudio de la tecnología prehistórica.
Els jaciments de la serralada d' Atapuerca son objecte d'un nou repte. S'hi engega un... more Els jaciments de la serralada d' Atapuerca son objecte d'un nou repte. S'hi engega un nou projecte que te per objectiu impulsar-ne la divulgacio social i la presentacio, tant dels jaciments com de les instal·lacions, al public en general, i especialment al public escolar. Dues empreses, Schola. Didactica Activa, SL, amb seu a Barcelona, i Paleorama, SL, amb seu a Madrid, vinculades amb l'equip d'investigacio i dedicades a la didactica, interpretacio i experimentacio en prehistoria, afronten juntes el repte de donar a coneixer a tota la societat les dades que aporta Atapuerca. Els objectius principals son investigar en el tractament didactic dels continguts i crear una oferta d'activitats variada i adaptada.
El articulo forma parte de una seccion de la revista dedicada a propuestas didacticas.- Forma par... more El articulo forma parte de una seccion de la revista dedicada a propuestas didacticas.- Forma parte de una serie coleccionable (material fotocopiable)
Most biogeographers considered the Maghreb to be part of the Palearctic biogeographic region, tho... more Most biogeographers considered the Maghreb to be part of the Palearctic biogeographic region, though it is relatively recently that the proportion of Palearctic species increased there. How and when exactly these biogeographic changes occurred is not well understood, but they are probably the result of the increasing aridification of the Sahara and decreasing global temperatures. Fossils of Bos primigenius and Ceratotherium simum from a new fossil locality in a terrace of the Oued el Haï (NE Morocco) contribute to our understanding of some of these biogeographic processes and their timing. They also suggest an age between ~57 and ~100 ka for the terrace. The same evolutionary change in Bos in Europe and the Maghreb suggests geneflow as the most parsimonious explanation, though parallel evolution is an alternative possibility. Oued el Haï has the oldest well-documented record of C. simum in the Maghreb. The dispersal of this species to North Africa, where it replaced C. mauritanicum, may have occurred during a ‘Green Sahara Period’ between 80–85 or 100–105 ka, when the Maghreb had acquired already a Palearctic character. The study of the biogeography and requirements of the large mammals of the Maghreb may provide information to calibrate the region’s climate modelling. Link: https://www.tandfonline.com/doi/abs/10.1080/08912963.2021.1995381?journalCode=ghbi20
Información del artículo Transformación de la humanidad: ¿cómo se produjo el primer salto hacia l... more Información del artículo Transformación de la humanidad: ¿cómo se produjo el primer salto hacia la humanización?
Información del artículo El sistema lógico analítico: una herramienta para el estudio de la tecno... more Información del artículo El sistema lógico analítico: una herramienta para el estudio de la tecnología prehistórica.
Els jaciments de la serralada d' Atapuerca son objecte d'un nou repte. S'hi engega un... more Els jaciments de la serralada d' Atapuerca son objecte d'un nou repte. S'hi engega un nou projecte que te per objectiu impulsar-ne la divulgacio social i la presentacio, tant dels jaciments com de les instal·lacions, al public en general, i especialment al public escolar. Dues empreses, Schola. Didactica Activa, SL, amb seu a Barcelona, i Paleorama, SL, amb seu a Madrid, vinculades amb l'equip d'investigacio i dedicades a la didactica, interpretacio i experimentacio en prehistoria, afronten juntes el repte de donar a coneixer a tota la societat les dades que aporta Atapuerca. Els objectius principals son investigar en el tractament didactic dels continguts i crear una oferta d'activitats variada i adaptada.
Evidence of earliest human settlements observed in the alluvial formations of the Middle Loire Ba... more Evidence of earliest human settlements observed in the alluvial formations of the Middle Loire Basin during systematic surveys organised since 1981. Many stepped fluvial terraces deposited during the successive interglacial–glacial Quaternary cycles have been identified in three tributary valleys of the Loire River: the Creuse, Cher and Loir Valleys. These alluvial remnants were systematically dated by the Electron Spin Resonance (ESR) method applied on optically bleached quartz, in order to construct a chronostratigraphical framework for the fluvial systems and the associated archaeological localities.
Four localities containing Early Palaeolithic industries with Mode 1 technology, occupied during the Lower Pleistocene, and ten sites characterized by assemblages with handaxes, discovered in the Middle Pleistocene alluvial formations, are described in this paper. These two sets of localities are characterized by lithic industries with many differences in supply of raw materials and in technical behaviours.
The results indicate that this area was reached by two separate phases of human settlement (one in relation to Mode 1, the other to Mode 2) with an interval around 400 ka, at the end of the Lower Pleistocene, during a period characterized by major climatic degradations.
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Four localities containing Early Palaeolithic industries with Mode 1 technology, occupied during the Lower Pleistocene, and ten sites characterized by assemblages with handaxes, discovered in the Middle Pleistocene alluvial formations, are described in this paper. These two sets of localities are characterized by lithic industries with many differences in supply of raw materials and in technical behaviours.
The results indicate that this area was reached by two separate phases of human settlement (one in relation to Mode 1, the other to Mode 2) with an interval around 400 ka, at the end of the Lower Pleistocene, during a period characterized by major climatic degradations.